Airbag ventilation in 10 easy steps

Pig management expert John Gadd is a believer in artificially controlled natural ventilation (ACNV) systems. Unfortunately things often go wrong when producers try to create these types of solutions, he says. Here’s how to do it properly… ACNV is a halfway-house between fully natural ventilation and forced (fan) ventilation. There are 2 reasons for this article… Because it is becoming more popular due to its low cost and flexibility, especially where large areas have to be ventilated, whe